Shark Attack Test- Human Blood vs. Fish Blood 

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I personally got in the water and tested if Sharks had a preference of human blood vs. fish blood. Get your first month of KiwiCo for FREE!!! www.kiwico.com/markrober
Also, thanks to Discovery for putting my life in danger. #SharkWeek begins August 9th.
Catch ME in ShaqAttack Monday, August 10th at 9p ET only on Discovery.
FACEBOOK: sharkweek
TWITTER: sharkweek
INSTAGRAM: sharkweek
RSvid: rsvid.info
TIKTOK: www.tiktok.com/@discovery
Here is a link to that tiny exercise machine I was using the the jet. Luke (my shark expert buddy) invented it and it's really clever. He's launching a Kickstarter really soon- whipr.com/
***Music info coming soon***
Here is a talented up and coming artist named Kenyi. Check him out! smarturl.it/1c5766






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Коментара 98   
Mark Rober
Mark Rober Пре 18 сати
Sorry this took awhile. I've got 8 absolute banger videos I'm currently working on through April 2021 but it turns out the Rona slows things down a bit. They will be worth the wait! For updates, follow me on social stuff @MarkRober.
Braden Battershell
Braden Battershell Пре 11 сати
Try the same thing but with crocodiles
Potter heads unite
Potter heads unite Пре 14 сати
No sweat Rober I promised my friends my first video may 23 look where I am now
Minecraft Stuff
Minecraft Stuff Пре 14 сати
Does Kiwi Co. have shipping to Asia Or more like Thailand?
maia kissinger
maia kissinger Пре 14 сати
First of all where did you get human blood from
Minecraft Stuff
Minecraft Stuff Пре 14 сати
Go To My ChanneI_ [L. I. V. E. N_O_W]
Is no one going to talk about how he just stuck his hands in fish blood for no reason
Raikou Пре 11 сати
Bro 5 hours ago
J Smith
J Smith Пре 11 сати
R.I.P. fish 1920-2020
Jerome Lopez
Jerome Lopez Пре 11 сати
Me wondering where the blood came from or is it just dyed water btw it's just a joke
Jackson Jedelsky
Jackson Jedelsky Пре 11 сати
i'm 13 and love kiwi co.
Mr.mm2 Пре 11 сати
how did they get the 5 gallons of human blood..
Melancholic Egg
Melancholic Egg Пре 11 сати
I forgot just how much of an absolute unit Shaq is till I saw him in that chair
Gabriel Canare
Gabriel Canare Пре 11 сати
Your the best mark
Princess BaiBoo
Princess BaiBoo Пре 11 сати
Yay you posted I’m a huge fan! I love it when you post cause you always have such cool videos
Twigga Finga
Twigga Finga Пре 11 сати
everyone gangsta until the megaladon pull up in the pacific
Mr B's Makerspace
Mr B's Makerspace Пре 11 сати
Yo Mark, I am a Design and Technolgy teacher! (Its an English school subject) I use your videos all the time in my class and workshop. During the lockdown, I have made virtual videos for my students at Mr B's Makerspace.....after 75 videos I have so much respect for you and how you deliver DT (Design and Technolgy) please check it out. Love your ideas if at any time you could shout out to The Banda school that would be awesome everyone here is a massive fan! England says Hi!
qurdle Пре 11 сати
Shaqs voice sounds like he normally talks really fast and its slowed down
Eddy Jin is a Jerk
Eddy Jin is a Jerk Пре 11 сати
You gotta love how hard he works for our content
OGthirstgod 01
OGthirstgod 01 Пре 11 сати
When he mentioned human blood it scared me 😅
James Mastroianni
James Mastroianni Пре 11 сати
Curiosity killed the cat, but satisfaction brought it back
HumbleCaktus Пре 11 сати
Logan paul: Laughs at dead person Everyone: Hate hate hate hate Mark: Laughs at dead fish being blended Everyone: understandable have a nice day
Filt3r _FN
Filt3r _FN Пре 11 сати
How are u so smart
Christopher Samuel
Christopher Samuel Пре 11 сати
*B I N O D*
raZe Kam0
raZe Kam0 Пре 11 сати
3:30 You spelled launcher wrong. (Not trying to be mean just letting you know)
USS Constitution The unsinkable
when my dad was alive we loved shark week. we watched it all the time. oh i miss my dad.
deshawn_plays Пре 11 сати
Hopefully this pandemic ends soon
Lucky Пре 11 сати
The youtube money is getting to his head man
Something Good
Something Good Пре 11 сати
this man is in his prime
cmndrkool321 Пре 11 сати
COVID sucks. I had it once back in February, and I am getting tested again.
Matthew Greski
Matthew Greski Пре 11 сати
Dude, ur my favorite youtuber dude... gj on being alive
Kevin Sargent
Kevin Sargent Пре 11 сати
Why does Shaq look old AF? He's in his 40s
Chase Janney
Chase Janney Пре 11 сати
I used to have tinker crate
Manuel Flores
Manuel Flores Пре 11 сати
Mark if u dont mind how lond did u have covid for
TheVideomakerArchive Пре 11 сати
As always Cheers Mark!
jeany_playz Пре 11 сати
Jesse Williams
Jesse Williams Пре 11 сати
How flat earthers think a round earth looks 10:34
Kaur Habo
Kaur Habo Пре 11 сати
Mark your my exsaple👨‍🔬. Please respond . And Google Estonia 😁
Дмитрий Мелентьев
I wonder what was the price for the private jet
Kyanberu sama
Kyanberu sama Пре 11 сати
Hold up. Mark Rober Dude perfect AND SHAQ ? What a line up
EpicCaden Playz
EpicCaden Playz Пре 11 сати
Hey mark you bought a private jet, did ya get a loan from mrbeast
Gooner CestLaVie
Gooner CestLaVie Пре 11 сати
All your experimentations are flawed..... The previous one with just human blood couldn't be enough. It's a combo, sharks are smart, sharks will evaluate the blood + something moving on the board or in the water, they detect vibrations and also electric signals from the human body.......... Your new experimentation doesn't make sense either... Obviously sharks will choose to go towards a more familiar blood. Its what they know the most, they are conditionned by it. It absolutely does not mean that sharks would not go in numbers towards human blood if it was the only choice. It's all about the number of choices offered and the natural instinct, the need to feed. In real life you would not have these choices so sharks would certainly come to pay a visit. In the end your experimentations prove nothing are useless....sorry... But the videos were cool for the entertainment.....
Ava Talabock
Ava Talabock Пре 11 сати
Omg mark I was a couple weeks ago on a show called, to tell the truth ! It was so funny because I had just finished watching (again😂) your squirrel proof bird feeder video
MandJTV Пре 11 сати
All of Mark's videos are excellent and entertaining, but this one gets a new adjective: batshit insane
Studio Dodo
Studio Dodo Пре 11 сати
Ben Пре 11 сати
has anyone actually wondered how mark got the 5 gallons of *HUMAN* blood edit: ok sorry i didnt know i only watched from 0:00 to 7:20 lol
Griffin Spracher
Griffin Spracher Пре 11 сати
Quarantined capo Giorno Giovanna
Perim Galinis
Perim Galinis Пре 11 сати
It sounded like mark wanted to drink the fish blood so bad
Emily Musty
Emily Musty Пре 11 сати
Hi I am fan
Bobby Farley
Bobby Farley Пре 11 сати
anyone wonder how he got the 5 gallons of human blood
Daze Nev
Daze Nev Пре 11 сати
make a city for any kind of tiny living thing
TheCommentatorguy Пре 11 сати
by far one of my favourite channels on youtube. LOVE THE VIDEOS!
fortress red09
fortress red09 Пре 11 сати
If he blended up the fish then what about the humans 😮
Emily Musty
Emily Musty Пре 11 сати
Nonexistent Cheese
Nonexistent Cheese Пре 11 сати
This video is such a flex
Jason wolf
Jason wolf Пре 11 сати
Anyone else see the panic as he's swimming up
Chantubegamer. Пре 11 сати
Another Evidence of Mark risking his life for us.
Ibriell Sheppard
Ibriell Sheppard Пре 11 сати
OMG my head started sweating so bad that looks so scary
Patryk Zielinski
Patryk Zielinski Пре 11 сати
'Put elon on hold and transfer oprah"
Luke B
Luke B Пре 11 сати
I hope Phat Gus stays safe during the Rona
Bovisa 21
Bovisa 21 Пре 11 сати
1:30 why u gotta be so awkward man? he said chop chop lets get to work not "tell me about ur life story mark" smh
deku the annoyer
deku the annoyer Пре 11 сати
shaq used to be my neighbor
it’s_Jonathan _yep
it’s_Jonathan _yep Пре 11 сати
The vegans watching this 👁👄👁
New Update Games
New Update Games Пре 11 сати
Nia Пре 11 сати
Are we gonna talk about how Mark nearly lost an arm
Potato Salad
Potato Salad Пре 11 сати
0 fishes were harmed in the making of this video
Mikkel Fabricius Andersen
Mikkel Fabricius Andersen Пре 11 сати
Oh no not shell please don’t throw that in the water 5:48
Kangawoo Ssss
Kangawoo Ssss Пре 11 сати
Mark rober mykull reeves collab?
yo me
yo me Пре 11 сати
Jayden_ ROBLOX
Jayden_ ROBLOX Пре 11 сати
Mark is an amazing youtuber it’s kinda like learning stuff but in a fun way
Thatunknown _user
Thatunknown _user Пре 11 сати
That poor fish
Beni Пре 11 сати
the guys with the camera made it less impressive smh
Andy Lopez
Andy Lopez Пре 11 сати
How did he... how did he get human blood
ThunderMol Пре 11 сати
When the person stuck the thing up his nose I felt it 😳
Nicky Dare
Nicky Dare Пре 11 сати
Question for mark why do you put sea water on the control instead of nothing
149Dragonite Пре 11 сати
I used to get kiwi kits
it's Reynvicb
it's Reynvicb Пре 11 сати
@MarkRober the quality in your videos has improved so much over the years that watching this one video almost seems as if I'm watching something straight out of a nat geographic documentary. Keep up the good work!
D Bro
D Bro Пре 11 сати
Wait, how did people find out all mammal blood smells almost the same for sharks?
Ghastify Пре 11 сати
Snarky boi
bot_6579 8
bot_6579 8 Пре 11 сати
Anyone else wondering how he got the 5 gallons of human blood Never mind
Sebastian Bakradze
Sebastian Bakradze Пре 11 сати
hey... build a mech suit cuss why not
Longobardi Lounge
Longobardi Lounge Пре 11 сати
That first shark looking up through the bottom. Was like Hey Rober,, heeeeeeeres Sharky!!
Noodles Пре 11 сати
4:28 *vegans has left the chat*
GRAYRAPTOR13 ! Пре 11 сати
Poor sharks :(
SilverStar Пре 11 сати
Hey Mark Rober. I just had a question... What engineering do you do? And did you do chemistry In school?
bottlejunkie3 Пре 11 сати
Im a big fan of the stuff Mark puts out. But isn't this the identical experiment that he did last year? Multiple boards with fish blood, human blood, and a control.
Nic Trefry
Nic Trefry Пре 11 сати
4:23 German Scientists desecrate corpse of test subject (Circa 1939, Colorized)
Andy Пре 11 сати
No animals were harmed in the making of this video.
harshjot singh
harshjot singh Пре 11 сати
make more videos pls
Victor De Miguel
Victor De Miguel Пре 11 сати
5 gallons of human blood? I won’t ask any questions.
Liopio Пре 11 сати
im here watching minecraft videos while this dude kicks sharks out of his cage
William Snow
William Snow Пре 11 сати
The question is, where did mark get 5 gallons of human blood
Eli bekhor
Eli bekhor Пре 11 сати
love your shows ahhh want to be an engiiner when i grow up and you help me with that thanks!
Carter Miller
Carter Miller Пре 11 сати
Should have named it cows blood vs fish puree
andre rocha
andre rocha Пре 11 сати
awesome video but, why? hahaha
Adil Asgher
Adil Asgher Пре 11 сати
Glad you recovered Mark!
anijanka Пре 11 сати
Which kinda sharks were they ?
Eskil he
Eskil he Пре 11 сати
How did he get 5 that much human blood
Charly Wang
Charly Wang Пре 11 сати
2020's best drama show
adonis salloum
adonis salloum Пре 11 сати
I love how vegans would be crying rn
Casual Artist
Casual Artist Пре 11 сати
Mark is the reason I love science.
27 DILLON FULWEBER Пре 11 сати
He posts 12 times a year 1 video every month
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